Literature DB >> 17155738

Measurements of the generalized electric and magnetic polarizabilities of the proton at low Q2 using the virtual-compton-scattering reaction.

P Bourgeois1, Y Sato, J Shaw, R Alarcon, A M Bernstein, W Bertozzi, T Botto, J Calarco, F Casagrande, M O Distler, K Dow, M Farkondeh, S Georgakopoulos, S Gilad, R Hicks, M Holtrop, A Hotta, X Jiang, A Karabarbounis, J Kirkpatrick, S Kowalski, R Milner, R Miskimen, I Nakagawa, C N Papanicolas, A J Sarty, S Sirca, E Six, N F Sparveris, S Stave, E Stiliaris, T Tamae, G Tsentalovich, C Tschalaer, W Turchinetz, Z-L Zhou, T Zwart.   

Abstract

The mean square polarizability radii of the proton have been measured for the first time in a virtual-Compton-scattering experiment performed at the MIT-Bates out-of-plane scattering facility. Response functions and polarizabilities obtained from a dispersion analysis of the data at Q2 = 0.057 GeV2/c2 are in agreement with O(p3) heavy baryon chiral perturbation theory. The data support the dominance of mesonic effects in the polarizabilities.

Entities:  

Year:  2006        PMID： 17155738     DOI： 10.1103/PhysRevLett.97.212001

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  1 in total

1.  Measured proton electromagnetic structure deviates from theoretical predictions.

Authors:  R Li; N Sparveris; H Atac; M K Jones; M Paolone; Z Akbar; C Ayerbe Gayoso; V Berdnikov; D Biswas; M Boer; A Camsonne; J-P Chen; M Diefenthaler; B Duran; D Dutta; D Gaskell; O Hansen; F Hauenstein; N Heinrich; W Henry; T Horn; G M Huber; S Jia; S Joosten; A Karki; S J D Kay; V Kumar; X Li; W B Li; A H Liyanage; S Malace; P Markowitz; M McCaughan; Z-E Meziani; H Mkrtchyan; C Morean; M Muhoza; A Narayan; B Pasquini; M Rehfuss; B Sawatzky; G R Smith; A Smith; R Trotta; C Yero; X Zheng; J Zhou
Journal:  Nature       Date:  2022-10-19       Impact factor: 69.504
  1 in total

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